EZKleens Boiler Sight Glass

ABSTRACT

A sight glass system that simplifies the way a sight glass is cleaned and accessed during servicing a boiler by allowing someone to treat the boiler with cleaning chemicals without taking off the pressure release valve to pour in the boiler treatment. The cleaning process can now be achieved easily with the EZKleens Boiler Sight Glass system by taking off the service valve head cap and pour the treatment through the sight glass and into the boiler with the shut off valves open.

BACKGROUND OF THE INVENTION Field of the Invention

The present invention relates to a boiler sight glass system thatprovides an easy to use feature for cleaning the sight glass withoutremoving it. The boiler will be serviced via removing the service headcap (1) and adding boiler cleaners.

FEATURES OF THE INVENTION

With use of the boiler to produce steam or hot water, the inside of asight glass becomes brown due to corrosion of the cast iron parts insidethe boiler. As a result, homeowners and service personnel are unable tosee the level of water inside the boiler. To clean the glass, the wingnut (5) has to be removed, resulting in the sight glass (6) being brokenalmost every time. With the present invention, neither the wing nut (5)nor the sight glass (6) has to be removed; only the drain plug (8) hasto be removed. The cleaning operation can be performed by removing theservice head cap (1) and inserting a cleaning brush inside the sightglass (6). During the cleaning operation, the bottom main water shutoffvalve (11) must be closed to prevent back flow of water from the boilerinto the sight glass (6).

Today maintenance personnel that need to perform chemical treatments tothe boiler to prevent corrosion of the cast iron parts of the boilerhave to remove the pressure relief valve to pour in the requiredanti-corrosive chemicals. This operation is time consuming, expensiveand requires skilled personnel. With the present invention, one needs tounscrew the service head cap (1), open the main water shutoff valve (11)so as to allow the liquid that is used to travel into the boiler throughthe sight glass (6) that is poured through the service head cap (1)while the drain plug (8) is screwed on.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded front view of the EZKleens Boiler Sight Glasssystem of the present invention with main water shutoff valves (11)oriented at a 90° angle from the normal position;

FIG. 2 is a perspective view of the EZKleens Boiler Sight Glass systemof the present invention;

DETAILED DESCRIPTION

FIG. 1 of the EZKleens Boiler Sight Glass system of the presentinvention consists of the following components:

-   -   1 Service head cap    -   2 Cleaning/service valve head    -   3 Rubber washer    -   4 O-ring metal washer    -   5 Wing nut    -   6 Sight glass    -   7 Cleaning/service valve foot    -   8 Drain plug    -   9 Connecting tube for cleaning/service valves to be connected to        main water shutoff valves    -   10 Female aperture for connecting tube to main water shutoff        valves and cleaning/service valves    -   11 Main water shutoff valves

FIG. 2 of the EZKleens Boiler Sight Glass system shows a perspectiveview of the present invention indicating the unique top and bottomcomponents which are 1, 2, 6, 7, and 8. Components 1 & 2 are located atthe top and 7 & 8 are located at the bottom of the EZKleens Boiler SightGlass system of the present invention.

-   -   1. Cleaning/service valve head (2)        -   a. Top hole thread for screwing service head cap        -   b. Body of cleaning/service valve head (2)            -   i. Female thread aperture for connecting tube (9)            -   ii. Sight glass (6) can fit inside the tubular part of                the cleaning/service valve head (2) for easy replacement                of glass if needed.        -   c. Bottom male thread for connecting compressing the wing            nut (5) to cleaning/service valve head (2). The compression            wing nut (5) compresses a rubber washer designed to seal the            sight glass (6) and lock it in place. In a preferable            embodiment of the present invention, a o-ring metal washer            (4) is added at the inside of the wing nut (5) to bind the            rubber washer (3) to prevent the rubber washer (3) from            turning as you tighten the wing nut (5) to the thread of the            cleaning/service valve head.    -   2. Connecting tube (9) fits into aperture of body of        cleaning/service head (2) and also connects to top main water        shutoff valve (11). Connecting tube (9) is connected to the body        of the cleaning/service head (2) without touching the sight        glass (6). Advantageously, the connecting tube (9) eliminate the        need for a supporting structure in existing systems which        prevents movements of valves that may result in sight glass (6)        being cracked or broken.    -   3. Cleaning/service valve foot (7)        -   a. Body of draining apparatus            -   i. A first aperture for sight glass (6) to fit in and                for bottom of sight glass (6) to sit on the end of the                aperture as to prevent the sight glass (6) from moving                further down            -   ii. A threaded bottom aperture for any existing                commercial drain plug (8)

We claim:
 1. A sight glass system for easy cleaning of boilerscomprising: a cleaning service valve head with a cap, and aperture toconnect to main water shutoff valve to the cleaning service valve head,and a sight glass that connects to cleaning service valve head and thecleaning service valve foot, and the cleaning service valve foot has adrain plug, and an aperture that connects to the bottom main watershutoff valve
 2. The sight glass system according to claim 1, furthercomprises: independent main water shutoff valves that areinterchangeable between the cleaning service valve head and cleaningservice valve foot
 3. The sight glass system according to claim 1,wherein the sight glass can be cleaned by removing the service head cap4. The sight glass system according to claim 1, wherein the boiler canbe serviced with cleaning chemicals by pouring it through the cleaningservice valve head while the main water shutoff valve foot is open,allowing for the chemicals to flow into the boiler